公开(公告)号：US11837174B2

公开(公告)日：2023-12-05

申请号：US17732549

申请日：2022-04-29

Applicant: Samsung Display Co., LTD.

Inventor： Jong Woong Park ,  Takeshi Kato

IPC: G09G3/3275 ,  G09G3/3225

CPC classification number: G09G3/3275 ,  G09G3/3225 ,  G09G2360/16

Abstract: A display device includes dots and a grayscale correction unit. Each dot among the dots includes a first pixel of a first color, a second pixel of a second color, and a third pixel of a third color. The grayscale correction unit is configured to generate corrected grayscale values for a target dot via application of weights to grayscale values of the target dot and grayscale values of neighboring dots of the target dot among the dots. The grayscale correction unit is configured to determine the weights based on the grayscale values of the target dot.

公开(公告)号：US11188728B2

公开(公告)日：2021-11-30

申请号：US16133728

申请日：2018-09-18

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Woong Park

IPC: G06K9/00 ,  H01L27/32 ,  G09G3/3208 ,  G09G3/32

Abstract: A display device includes a display panel having a display area including pixels in a emitting area, a layer disposed on the display panel and including photo sensors to generate sensing signals upon activation thereof, a panel driving unit to supply a first signal, during a first mode, to display an image in the display area, and supply a second signal, during a second mode, to increase the luminance of the emitting area, a detecting unit to perform a fingerprint sensing operation to detect a fingerprint, during the second mode, based on sensing signals received from the photo sensors, and a setting unit to change a characteristic of the emitting area in response to the fingerprint sensing operation.

公开(公告)号：US11081060B2

公开(公告)日：2021-08-03

申请号：US16599372

申请日：2019-10-11

Applicant: Samsung Display, Co., Ltd.

Inventor： Jong Woong Park

IPC: G09G3/3266 ,  G09G3/3258

Abstract: A display device includes: a display panel including a plurality of pixels each coupled to a scan line and a data line; a scan driver for supplying a scan signal having at least one scan pulse to the scan line; and a pulse controller for adjusting a number of the scan pulses supplied during one frame, based on an image variation between a previous frame and a current frame.

公开(公告)号：US11081039B2

公开(公告)日：2021-08-03

申请号：US16733854

申请日：2020-01-03

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Woong Park ,  Jae Gwan Jeon ,  Nam Gon Choi

IPC: G09G3/20

Abstract: A display device includes a display unit including a plurality of pixels, a data converter to receive grayscale values respectively corresponding to the plurality of pixels, generate first compensated grayscale values by remapping the grayscale values of a first grayscale range to the first compensated grayscale value of a second grayscale range, and generate second compensated grayscale values by compensating for the first compensated grayscale values based on first compensated grayscale values of adjacent pixels, and a data driver to generate data signals based on the second compensated grayscale values and provide the data signals to the plurality of pixels of display unit, wherein adjacent pixels of a target pixel correspond to pixels adjacent to the target pixel, and wherein at least one of the adjacent pixels emits light having a color different from that of the target pixel.

公开(公告)号：US10885855B2

公开(公告)日：2021-01-05

申请号：US16514909

申请日：2019-07-17

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Woong Park

IPC: G09G3/3275 ,  G09G3/3266 ,  G09G3/3258 ,  G09G3/3233

Abstract: A display device includes: a plurality of pixels each of which includes a light emitting element and a driving transistor having a source region separated from a drain region by a first distance to control an amount of current flowing through the light emitting element; a timing controller to convert a first image data input into a second image data, using a data correction coefficient set corresponding to the first distance of one of the plurality of pixels; and a data driver to generate a data signal corresponding to the second image data and supplying the data signal to the one of the plurality of pixels. A method of compensating for degradation of a display device also is disclosed.

公开(公告)号：US20220020306A1

公开(公告)日：2022-01-20

申请号：US17240863

申请日：2021-04-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jong Woong Park

IPC: G09G3/20

Abstract: A display device includes: a pixel unit including first pixels disposed in a first pixel area and second pixels disposed in a second pixel area; an image data corrector adjusting a limit grayscale of first image data corresponding to the first pixel area based on a dimming level defining a maximum luminance at which the pixel unit is able to emit light, and correcting the first image data based on the limit grayscale; a data driver supplying data signals to the pixel unit based on the corrected first image data and second image data corresponding to the second pixel area; and a scan driver supplying scan signals to the pixel unit.

公开(公告)号：US10902789B2

公开(公告)日：2021-01-26

申请号：US16379338

申请日：2019-04-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jong Woong Park

IPC: G09G3/3275 ,  G09G3/3225

Abstract: A display device providing grayscale correction to pixels in a plurality of dots which cat display an image frame in which aliasing is relaxed for various pixel arrangement structures.

公开(公告)号：US09928773B2

公开(公告)日：2018-03-27

申请号：US14728524

申请日：2015-06-02

Applicant: Samsung Display Co., Ltd.

Inventor： Jae Shin Kim ,  Jun Han Ko ,  Jong Woong Park ,  Gun Hee Chung

IPC: G09G3/32 ,  G09G3/3208 ,  G09G3/3233

CPC classification number: G09G3/3208 ,  G09G3/3233 ,  G09G2320/0233 ,  G09G2320/043 ,  G09G2340/16 ,  G09G2350/00 ,  G09G2360/16

Abstract: A degradation compensation apparatus including: a calculator provided with gray data regarding a plurality of consecutive frames, the calculator calculating and outputting a frame degradation amount of a current frame, which indicates a degree of degradation of the current frame; a memory accumulating and storing the frame degradation amount of the current frame and outputting a cumulative degradation amount, which is an accumulated degree of degradation of frames up to the current frame; and a data corrector correcting the gray data for a subsequent frame based on the cumulative degradation amount. Each of the plurality of consecutive frames includes first and second blocks each having a plurality of pixels, and the frame degradation amount is calculated based on one of the pixels included in the first block and one of the pixels included in the second block.

公开(公告)号：US12008953B2

公开(公告)日：2024-06-11

申请号：US18323978

申请日：2023-05-25

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hyun Kyung Song ,  Jong Woong Park ,  Hye Sang Park

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2330/021 ,  G09G2340/0457

Abstract: A display device includes a display panel. The display panel includes sub-pixels. A driver converts first frame data corresponding to a first pixel arrangement of the sub-pixels into second frame data corresponding to a second pixel arrangement and provides data signals corresponding to second frame data to the sub-pixels having the second pixel arrangement. The driver includes a padding circuit and a rendering circuit. The padding circuit converts the first frame data into padding data by adding a padding value to at least one of a front end and a rear end of each line data of the first frame data. The rendering circuit generates the second frame data by applying a rendering filter to the padding data.

公开(公告)号：US20240112640A1

公开(公告)日：2024-04-04

申请号：US18528681

申请日：2023-12-04

Applicant: Samsung Display Co., LTD.

Inventor： Jong Woong Park ,  Takeshi Kato

IPC: G09G3/3275 ,  G09G3/3225

CPC classification number: G09G3/3275 ,  G09G3/3225 ,  G09G2360/16

Abstract: A display device including dots and a grayscale correction unit. Each dot among the dots includes a first pixel of a first color, a second pixel of a second color, and a third pixel of a third color. The grayscale correction unit is configured to generate corrected grayscale values for a target dot via application of weights to grayscale values of the target dot and grayscale values of neighboring dots of the target dot among the dots. The grayscale correction unit is configured to determine the weights based on the grayscale values of the target dot.